<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <div id="app">
        <!-- 1  .stop修饰符的使用
        调用的是event.stopPropagation() -->
        <div @click="divClick">
            aaaa
            <button @click.stop="btnClick">按钮</button>
        </div>

        <!-- 2  .prevent修饰符的使用
          调用的是event.preventDeafault() -->
        -->
        <br>
        <form action='baidu'>
            <input type="submit" value="提交" @click.prevent="submitClick">
        </form>

        <!-- 3  监听键盘某个键帽的点击 -->
        <input type="text" @keyup.enter="keyUp">

        <!-- 4   组件的监听 -->
        <cpn @click.native="cpnClick"></cpn>

        <!-- 5  .once修饰符的使用 -->
        <button @click.once="btn2Click">按钮2</button>
    </div>
    <script src="../js/vue.js"></script>
    <script>
        const app = new Vue({
            el:'#app',
            data:{
                message:'你好呀！'
            },
            methods:{
                btnClick(){
                    console.log("btnClick");
                },
                divClick(){
                    console.log("divClick");
                },
                submitClick(){
                    console.log("submitClick");    
                },
                keyUp(){
                    console.log("keyUp");    
                },
                btn2Click(){
                    console.log("btn2Click");   
                }

            }
        })
    </script>
</body>
</html>